<template>
  <div class="home">
    <div>
      <el-row :gutter="20">
        <el-col :span="6">
          <div class="out-top">
            <div class="layout-title">后台项目</div>
            <div class="address-content">
              <a href="https://github.com/macrozheng/mall">mall</a>
            </div>
          </div>
        </el-col>
        <el-col :span="6">
          <div class="out-top">
            <div class="layout-title">前端项目</div>
            <div class="address-content">
              <a href="https://github.com/macrozheng/mall-admin-web">mall-admin-web</a>
            </div>
          </div>
        </el-col>
        <el-col :span="6">
          <div class="out-top">
            <div class="layout-title">学习教程</div>
            <div class="address-content">
              <a href="https://github.com/macrozheng/mall-learning">mall-learning</a>
            </div>
          </div>
        </el-col>
      </el-row>
    </div>

    <div class="total-layout">
      <el-row :gutter="20">
        <el-col :span="6">
          <div class="total-frame">
            <img :src="img_home_order" class="total-icon">
            <div class="total-title">今日订单总数</div>
            <div class="total-value">220</div>
          </div>
        </el-col>
        <el-col :span="6">
          <div class="total-frame">
            <img :src="img_home_today_amount" class="total-icon">
            <div class="total-title">今日销售总额</div>
            <div class="total-value">￥7605.00</div>
          </div>
        </el-col>
        <el-col :span="6">
          <div class="total-frame">
            <img :src="img_home_yesterday_amount" class="total-icon">
            <div class="total-title">昨日销售总额</div>
            <div class="total-value">￥5775.40</div>
          </div>
        </el-col>
      </el-row>
    </div>

    <el-card class="mine-layout">
      <div style="text-align: center">
        <img width="150px" height="150px" src="http://macro-oss.oss-cn-shenzhen.aliyuncs.com/mall/banner/qrcode_for_macrozheng_258.jpg">
      </div>
      <div style="text-align: center">学习教程连载中！</div>
      <div style="text-align: center;margin-top: 5px">
        <span class="color-main">关注公号</span>。
      </div>
    </el-card>

    <div class="un-handle-layout">
      <div class="layout-title">待处理事务</div>
      <div class="un-handle-content">
        <el-row :gutter="20">
          <el-col :span="8">
            <div class="un-handle-item">
              <span class="font-medium">待付款订单</span>
              <span style="float: right" class="color-danger">(10)</span>
            </div>
          </el-col>
          <el-col :span="8">
            <div class="un-handle-item">
              <span class="font-medium">已完成订单</span>
              <span style="float: right" class="color-danger">(10)</span>
            </div>
          </el-col>
          <el-col :span="8">
            <div class="un-handle-item">
              <span class="font-medium">待确认收货订单</span>
              <span style="float: right" class="color-danger">(10)</span>
            </div>
          </el-col>
        </el-row>
        <el-row :gutter="20">
          <el-col :span="8">
            <div class="un-handle-item">
              <span class="font-medium">待发货订单</span>
              <span style="float: right" class="color-danger">(10)</span>
            </div>
          </el-col>
          <el-col :span="8">
            <div class="un-handle-item">
              <span class="font-medium">新缺货登记</span>
              <span style="float: right" class="color-danger">(10)</span>
            </div>
          </el-col>
          <el-col :span="8">
            <div class="un-handle-item">
              <span class="font-medium">待处理退款申请</span>
              <span style="float: right" class="color-danger">(10)</span>
            </div>
          </el-col>
        </el-row>
        <el-row :gutter="20">
          <el-col :span="8">
            <div class="un-handle-item">
              <span class="font-medium">已发货订单</span>
              <span style="float: right" class="color-danger">(10)</span>
            </div>
          </el-col>
          <el-col :span="8">
            <div class="un-handle-item">
              <span class="font-medium">待处理退货订单</span>
              <span style="float: right" class="color-danger">(10)</span>
            </div>
          </el-col>
          <el-col :span="8">
            <div class="un-handle-item">
              <span class="font-medium">广告位即将到期</span>
              <span style="float: right" class="color-danger">(10)</span>
            </div>
          </el-col>
        </el-row>
      </div>
    </div>

    <div class="overview-layout">
      <el-row :gutter="20">
        <el-col :span="12">
          <div class="out-top">
            <div class="layout-title">商品总览</div>
            <div style="padding: 40px">
              <el-row>
                <el-col :span="6" class="color-danger overview-item-value">123</el-col>
                <el-col :span="6" class="color-danger overview-item-value">430</el-col>
                <el-col :span="6" class="color-danger overview-item-value">55</el-col>
                <el-col :span="6" class="color-danger overview-item-value">804</el-col>
              </el-row>
              <el-row class="font-medium">
                <el-col :span="6" class="overview-item-title">已下架</el-col>
                <el-col :span="6" class="overview-item-title">已上架</el-col>
                <el-col :span="6" class="overview-item-title">库存紧张</el-col>
                <el-col :span="6" class="overview-item-title">全部商品</el-col>
              </el-row>
            </div>
          </div>
        </el-col>
        <el-col :span="12">
          <div class="out-top">
            <div class="layout-title">用户总览</div>
            <div style="padding: 40px">
              <el-row>
                <el-col :span="6" class="color-danger overview-item-value">104</el-col>
                <el-col :span="6" class="color-danger overview-item-value">230</el-col>
                <el-col :span="6" class="color-danger overview-item-value">1670</el-col>
                <el-col :span="6" class="color-danger overview-item-value">3480</el-col>
              </el-row>
              <el-row class="font-medium">
                <el-col :span="6" class="overview-item-title">今日新增</el-col>
                <el-col :span="6" class="overview-item-title">昨日新增</el-col>
                <el-col :span="6" class="overview-item-title">本月新增</el-col>
                <el-col :span="6" class="overview-item-title">会员总数</el-col>
              </el-row>
            </div>
          </div>
        </el-col>
      </el-row>
    </div>

    <div class="statistics-layout">
      <div class="layout-title">订单统计</div>
      <el-row>
        <el-col :span="4">
          <div style="padding: 20px">
            <div>
              <div style="color: #909399;font-size: 14px">本月订单总数</div>
              <div style="color: #606266;font-size: 24px;padding: 10px 0">21234</div>
              <div>
                <span class="color-success" style="font-size: 14px">+10%</span>
                <span style="color: #C0C4CC;font-size: 14px">同比上月</span>
              </div>
            </div>
            <div style="margin-top: 20px;">
              <div style="color: #909399;font-size: 14px">本周订单总数</div>
              <div style="color: #606266;font-size: 24px;padding: 10px 0">12540</div>
              <div>
                <span class="color-danger" style="font-size: 14px">-10%</span>
                <span style="color: #C0C4CC;font-size: 14px">同比上周</span>
              </div>
            </div>
            <div style="margin-top: 20px;">
              <div style="color: #909399;font-size: 14px">本月销售总额</div>
              <div style="color: #606266;font-size: 24px;padding: 10px 0">14545</div>
              <div>
                <span class="color-success" style="font-size: 14px">+10%</span>
                <span style="color: #C0C4CC;font-size: 14px">同比上月</span>
              </div>
            </div>
            <div style="margin-top: 20px;">
              <div style="color: #909399;font-size: 14px">本周销售总额</div>
              <div style="color: #606266;font-size: 24px;padding: 10px 0">54646</div>
              <div>
                <span class="color-danger" style="font-size: 14px">-10%</span>
                <span style="color: #C0C4CC;font-size: 14px">同比上周</span>
              </div>
            </div>
          </div>
        </el-col>
        <el-col :span="20">
          <div style="padding: 10px;border-left:1px solid #DCDFE6">
            <el-date-picker
              v-model="orderCountDate"
              style="float: right;z-index: 1"
              size="small"
              type="daterange"
              align="right"
              unlink-panels
              range-separator="至"
              start-placeholder="开始日期"
              end-placeholder="结束日期"
              :picker-options="pickerOptions"
              @change="handleDateChange"
            />
            <div>
              <ve-line
                :data="chartData"
                :legend-visible="false"
                :loading="loading"
                :data-empty="dataEmpty"
                :settings="chartSettings"
              />
            </div>
          </div>
          <LineMarker class="lineMarker"  width="600px" height="400px"></LineMarker>
        </el-col>
      </el-row>
    </div>
  </div>
</template>

<script>
import { str2Date } from '@/utils/date'
import LineMarker from '@/components/Charts/LineMarker'
import img_home_order from '@/assets/images/home_order.png'
import img_home_today_amount from '@/assets/images/home_today_amount.png'
import img_home_yesterday_amount from '@/assets/images/home_yesterday_amount.png'

const DATA_FROM_BACKEND = {
  columns: ['date', 'orderCount', 'orderAmount'],
  rows: [
    { date: '2018-11-01', orderCount: 10, orderAmount: 1093 },
    { date: '2018-11-02', orderCount: 20, orderAmount: 2230 },
    { date: '2018-11-03', orderCount: 33, orderAmount: 3623 },
    { date: '2018-11-04', orderCount: 50, orderAmount: 6423 },
    { date: '2018-11-05', orderCount: 80, orderAmount: 8492 },
    { date: '2018-11-06', orderCount: 60, orderAmount: 6293 },
    { date: '2018-11-07', orderCount: 20, orderAmount: 2293 },
    { date: '2018-11-08', orderCount: 60, orderAmount: 6293 },
    { date: '2018-11-09', orderCount: 50, orderAmount: 5293 },
    { date: '2018-11-10', orderCount: 30, orderAmount: 3293 },
    { date: '2018-11-11', orderCount: 20, orderAmount: 2293 },
    { date: '2018-11-12', orderCount: 80, orderAmount: 8293 },
    { date: '2018-11-13', orderCount: 100, orderAmount: 10293 },
    { date: '2018-11-14', orderCount: 10, orderAmount: 1293 },
    { date: '2018-11-15', orderCount: 40, orderAmount: 4293 }
  ]
}
export default {
  name: 'Home',
  components: { LineMarker },
  data() {
    return {
      pickerOptions: {
        shortcuts: [{
          text: '最近一周',
          onClick(picker) {
            const end = new Date()
            const start = new Date()
            start.setFullYear(2018)
            start.setMonth(10)
            start.setDate(1)
            end.setTime(start.getTime() + 3600 * 1000 * 24 * 7)
            picker.$emit('pick', [start, end])
          }
        }, {
          text: '最近一月',
          onClick(picker) {
            const end = new Date()
            const start = new Date()
            start.setFullYear(2018)
            start.setMonth(10)
            start.setDate(1)
            end.setTime(start.getTime() + 3600 * 1000 * 24 * 30)
            picker.$emit('pick', [start, end])
          }
        }]
      },
      orderCountDate: '',
      chartSettings: {
        xAxisType: 'time',
        area: true,
        axisSite: { right: ['orderAmount'] },
        labelMap: { 'orderCount': '订单数量', 'orderAmount': '订单金额' }},
      chartData: {
        columns: [],
        rows: []
      },
      loading: false,
      dataEmpty: false,
      img_home_order,
      img_home_today_amount,
      img_home_yesterday_amount
    }
  },
  created() {
    this.initOrderCountDate()
    this.getData()
  },
  methods: {
    handleDateChange() {
      this.getData()
    },
    initOrderCountDate() {
      const start = new Date()
      start.setFullYear(2018)
      start.setMonth(10)
      start.setDate(1)
      const end = new Date()
      end.setTime(start.getTime() + 1000 * 60 * 60 * 24 * 7)
      this.orderCountDate = [start, end]
    },
    getData() {
      setTimeout(() => {
        this.chartData = {
          columns: ['date', 'orderCount', 'orderAmount'],
          rows: []
        }
        for (let i = 0; i < DATA_FROM_BACKEND.rows.length; i++) {
          const item = DATA_FROM_BACKEND.rows[i]
          const currDate = str2Date(item.date)
          const start = this.orderCountDate[0]
          const end = this.orderCountDate[1]
          if (currDate.getTime() >= start.getTime() && currDate.getTime() <= end.getTime()) {
            this.chartData.rows.push(item)
          }
        }
        this.dataEmpty = false
        this.loading = false
      }, 1000)
    }
  }
}
</script>

<style scoped>
  .home {
    margin-top: 40px;
    margin-left: 120px;
    margin-right: 120px;
  }

  .total-layout {
    margin-top: 20px;
  }

  .total-frame {
    border: 1px solid #DCDFE6;
    padding: 20px;
    height: 100px;
  }

  .total-icon {
    color: #409EFF;
    width: 60px;
    height: 60px;
  }

  .total-title {
    position: relative;
    font-size: 13px;
    color: #909399;
    left: 70px;
    top: -50px;
  }

  .total-value {
    position: relative;
    font-size: 16px;
    color: #606266;
    left: 70px;
    top: -40px;
  }

  .un-handle-layout {
    margin-top: 20px;
    border: 1px solid #DCDFE6;
  }

  .layout-title {
    color: #787c84;
    padding: 15px 20px;
    background: #F2F6FC;
    font-weight: bold;
  }

  .un-handle-content {
    padding: 20px 40px;
  }

  .un-handle-item {
    border-bottom: 1px solid #9fa7ba;
    padding: 10px;
  }

  .overview-layout {
    margin-top: 20px;
  }

  .overview-item-value {
    font-size: 24px;
    text-align: center;
  }

  .overview-item-title {
    margin-top: 10px;
    text-align: center;
  }

  .out-top {
    border: 1px solid #DCDFE6;
  }

  .statistics-layout {
    margin-top: 20px;
    border: 1px solid #DCDFE6;
  }
  .mine-layout {
    position: absolute;
    right: 80px;
    top: 40px;
    width: 200px;
    height: 225px;
  }
  .address-content{
    padding: 20px;
    font-size: 18px
  }

  .lineMarker{
    margin-bottom: 30px;
  }
</style>
